Estimation of N Mineralization Potential and N Mineralization Rate of Organic Amendments in Upland Soil

다국어 초록 (Multilingual Abstract)

Management of renewable organic resources is important in attaining the sustainability of agricultural production. However, nutrient management with organic resources is more complex than fertilization with chemical fertilizer because the composition of the organic input or the environmental condition will influence organic matter decomposition and nutrient release. One of the most effective methods for estimating nutrient release from organic amendment is the use of N mineralization models. The present study aimed at parameterizing N mineralization models for a number of organic amendments being used as a nutrient source for crop production. Laboratory incubation experiment was conducted in aerobic condition. N mineralization was investigated for nineteen organic amendments in sandy soil and clay soil at 20°C, 25°C, and 30°C. N mineralization was facilitated at higher temperature condition. Negative correlation was observed between mineralized N and C:N ratio of organic amendments. N mineralization process was slower in clay soil than in sandy soil and this was mainly due to the delayed nitrification. The single and the double exponential models were used to estimate N mineralization of the organic amendments. N mineralization potential Np and mineralization rate k were estimated in different temperature and soil conditions. Estimated Np ranged from 28.8 to 228.1 and k from 0.0066 to 0.6932. The double exponential model showed better prediction of N mineralization compared with the single exponential model, particularly for organic amendments with high C:N ratio. It is expected that the model parameters estimated based on the incubation experiment could be used to design nutrient management planning in environment-friendly agriculture.

참고문헌 (Reference)

1 윤홍배, "가축분퇴비가 연용된 밭 토양에서 잠재적 질소 무기화량 추정" 한국토양비료학회 43 (43): 329-334, 2010

2 Dou Z., "soil nitrogen mineralization during laboratory incubation:dynamics and model fitting" 28 : 625-632, 1996

3 Thomsen I. K., "Turnover of organic matter in differently textured soils - II. Microbial activity as influenced by soil water regimes" 89 : 199-218, 1999

4 Hasegawa H., "Testing CERES model predictions of crop growth and N dynamics, in cropping systems with leguminous green manures in a Mediterranean climate" 67 : 239-255, 2000

5 Stanford G., "Temperature coefficient of soil nitrogen mineralization" 115 : 321-323, 1973

6 SAS Institute Inc., "SAS/ETS 9.1 User’s Guide" SAS Institute Inc., Cary, NC, USA 2004

7 Hadas A., "Rates of decomposition of plant residues and available nitrogen in soil, related to residue composition through simulation of carbon and nitrogen turnover" 36 : 255-266, 2004

8 Neve S. D., "Quantifying soil water effects on nitrogen mineralization from soil organic matter and from fresh crop residues" 35 : 379-386, 2002

9 Wang W. J., "Predicting Soil Nitrogen Mineralization Dynamics with a Modified Double Exponential Model" 68 : 1256-1265, 2004

10 Smith J. L., "Potential errors in the first-order model for estimating soil nitrogen mineralization potentials" 44 : 996-1000, 1980

11 Laos F., "Nutrient availability of composted and noncomposted residues in a Patagonian Xeric Mollisol" 31 : 462-469, 2000

12 Stanford G., "Nitrogen mineralization potentials of soils" 36 : 465-472, 1972

13 Lindemann W. C., "Nitrogen mineralization potential and nitrogen transformations of sludgeamended soil" 48 : 1072-1077, 1984

14 Cho Y. S., "Nitrogen mineralization of cereal straws and vetch in paddy soil by test tube analysis" 44 : 102-105, 1999

15 Li H., "Nitrogen mineralization in paddy soils of the Taihu region of China under anaerobic conditions: dynamics and model fitting" 115 : 161-175, 2003

16 Cabrera M. L., "Nitrogen mineralization from organic residues: research opportunities" 34 : 75-79, 2005

17 Zingore S., "Nitrogen mineralization and maize yields following application of tree prunings to a sandy soil in Zimbabwe" 57 : 199-211, 2003

18 Eghball B., "Nitrogen Mineralization from Field-Applied Beef Cattle Feedlot Manure or Compost" 64 : 2024-2030, 2000

19 Probert M. E., "Modelling nitrogen mineralization from manures: representing quality aspects by varying C:N ratio of sub-pools" 37 : 279-287, 2005

20 Lee Y., "Mineralized N of plant residues with different C:N ratios under upland and rice paddy condition" 10 : 808-812, 2012

21 Hadas A., "Mineralization of composted manure and microbial dynamics in soil as affected by long-term nitrogen management" 28 : 733-738, 1996

22 Bundy L. G., "Methods of soil analysis. Part 2. Microbiological and biochemical properties" Soil Science Society of America, Inc., Madison, WI, USA 951-984, 1994

23 Griffin T. S., "Manure composition affects net transformation of nitrogen from dairy manures" 273 : 29-38, 2005

24 Cabrera M. L., "Length of incubation time affects the parameter values of the double exponential model of nitrogen mineralization" 52 : 1186-1187, 1988

25 Thonnissen C., "Legume decomposition and nitrogen release when applied as green manures to tropical vegetable production systems" 92 : 253-260, 2000

26 Sugihara S., "Kinetics of mineralization of organic nitrogen in soil" 1 : 27-166, 1986

27 Lee S. K., "Effects of compost and rice straw on immobilization and mineralization of nitrogen fertilizer added to coarse loamy and clay soil" 17 : 60-66, 1984

28 Neve S. D., "Carbon mineralization from composts and food industry wastes added to soil" 67 : 13-20, 2003

29 Sierra J., "Analysis of soil nitrogen mineralization as estimated by exponential models" 22 : 1151-1153, 1990

30 Calderon F. J., "Analysis of manure and soil nitrogen mineralization during incubation" 41 : 328-336, 2005